1. Mice collected from the Sonoran desert have two phenotypes, dark (D) and light (d). The mice shown below were collected in a trap. Calculate:
the frequency of recessive alleles in the population, d. This is your q value

Which of the following statements is true about the relationship between genetic variation and natural selection? a. genetic variation must be present in a population before natural selection can act on it. b. genetic variation arises in a population as a result of natural selection. c. natural selection can act on a population whether there is genetic variation within the population or not. d. after natural selection acts on a population, the amount of genetic variation in the population always increases.